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Changed by monkey at jpobst.com.http://bugzilla.ximian.com/show_bug.cgi?id=79778
--- shadow/79778 2006-10-29 13:30:04.000000000 -0500
+++ shadow/79778.tmp.18070 2006-10-29 13:30:04.000000000 -0500
@@ -0,0 +1,47 @@
+Bug#: 79778
+Product: Mono: Class Libraries
+Version: 1.1
+OS:
+OS Details:
+Status: NEW
+Resolution:
+Severity: Unknown
+Priority: Normal
+Component: Windows.Forms
+AssignedTo: toshok at ximian.com
+ReportedBy: monkey at jpobst.com
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL:
+Cc:
+Summary: TabPage gets set to visible even if TabControl is not visible
+
+Description of Problem:
+If a TabPage is added to a TabControl that has not been added to a form
+yet, the TabPage is set to visible which creates its own top-level window.
+ Probably only occurs on Windows.
+
+Steps to reproduce the problem:
+1. Run attached program.
+
+Actual Results:
+An empty form is displayed, as well as an empty TabPage as a top-level
+window. See screenshot.
+
+Expected Results:
+Just the form should be visible.
+
+How often does this happen?
+Always.
+
+Additional Information:
+The offending line is 258 in TabControl.cs:
+selected.SetVisible (true);
+
+The stacktrace of how we got there is:
+at System.Windows.Forms.TabControl.set_SelectedIndex(Int32 value) in
+TabControl.cs:line 258
+at System.Windows.Forms.TabControl.ControlCollection.Add(Control value) in
+TabControl.cs:line 1080
+at MonoTest.MonoTest.myForm..ctor() in testcase13.cs:line 21
+at MonoCHelloWorld.Program.Main() in Program.cs:line 30